Pump-governor.



No. 659,3". Patented Oct. 9, I900.. H. MASCHMEYER.

PUMP GOVERNOR.

2 Sheets-Shoat l.

(Application filed. June 4, 1900.;

(No Madal.)

4 w WWW flvemye v v WSK MMV a e W W No. 659,3". 7 Patented Oct. 9, I900. H. MASCHMEYER.

PUMP-GUVERNOR.

' (Application filed June 4, 1900.) (No Model.) 2 Sheets-Sheet 2.

'NITED STATES PATENT OFFICE.

HERMANN MASOHMEIIER, MILWAUKEE, WISCONSIN, ASSIGNOR OF ONE- FIFTH TO JOHN A. HILL, OF SAME PLACE.

PUMP-GOVERNOR.

SPECIFICATION formingpart of Letters Patent No. 659,311, dated October 9, 1900. Application filed June 4, 1900. Serial No. 18,951. (No model.)

To all whom it may concern: voir-tank M, that is also connected by a pipe Be it known that LHERMANNMASOHMEYER, N to the pump aforesaid. a citizen of the United States, and a resident A passage leads from the interior of inlet of Milwaukee, in the county of Milwaukee portion of casing A through standard G into 5 and State of Wisconsin, have invented cera chamberfof block I, and a partition g, septain new and useful Improvements in Pumparating this chamber from another chamber Governors; and I do hereby declare that the h in said block, is provided with a port confollowing is a full, clear, and exact descriptrolled by a pin-valve P in connection with tion thereof. a bell-crank lever Q, fulcrumed in extension .0 My invention has for its object to provide d of shell H and coupled to diaphragm J simple economical means for automatic conaforesaid. trol of a pump in connection with a fluid-cir- The chamber h in block I communicates culating system; and it consists in the conwith a passage 4., that is for the most part struction and arrangement of parts hereinparallel to passage 6 and which leads into I 5 after particularly set forth with reference the cylindrical portion of the aforesaid casing. to the accompanying drawings and subse- A plate R on the under side of diaphragm quently claimed. J is provided with a depending central lugj, Figure l of the drawings represents a secthat engages the upper end of a spiral spring tional view of an automatic pump-governor S, supported by a nut 7t, adjustable on a 2o mechanism in-accordance with myinvention, screw T, extending through an aperture in the plane of the section being indicated by plate F to come in the upward path of pistonline 1 l in the succeeding figures; Figs. 2, 3, head E of valve D, above specified. The and 4, detail sectional views of the mechantension of spring S is regulated by adj ustism respectively indicated by lines 2 2, 3 3, ment of nut is on screw T, and the depth to 2,5 and 4 4 in the first figure; and Fig. 5, a diawhich the screw depends in the cylindrical gram illustrating said mechanism in connecportion of casing A is regulated by the adtion with a pump and reservoir-tank. justment of a set-nut m on said screw in op- Referring by letter to the drawings, A inposition to plate F aforesaid. To facilitate dicates a casing in the form of a coupling manipulation of screw T, the same is proo connecting sections B O of a pipe, by which vided with a collar n, with which a spannersteam is supplied to a pump of ordinary conwrench may be connected, and the amount struction, this pump being illustrated in the of lift of valve D from its seat is regulated diagram, Fig. 5. The horizontal portion of by the set of said screw. a partition I) in casing A, between the inlet In practice pressure of steam entering cas- 35 and outlet of same, is provided with an apering A will ordinarily unseat valve D as far as ture controlled by a valve 'D, the stem of screw T will permit, and this steam passing which is crowned by a piston E, movable in onto the pump operates same to fill tan-k M an upper cylindrical portion of said casing. and a circulating system, to which it may be This upper portion of the casing is provided connected, with water, air, or other fluid un- 0 with an annular outer flange c, anda coverder pressure. When the pressure in the tank plate F, bolted to the flange, is preferably rises to a predetermined degree greater than made in one piece with a pair of standards the resisting tension of spring S, the dia- G G and a shell H, surmounting the standphragm J yields to said pressure, and thereby ards. The"shell is provided with an open causes a movement of lever Q to bring pin- 5 45 lateral extension d, and a chambered block I valve P away from its seat, so that steam from is bolted or otherwise rigidly secured in said the inlet portion of casing A may find its way shell adjacent to said extension of same. through the then communicating passages e0, Bolted to an upper annular outer flange of to the cylindrical portion of said casing above shell H against an expansible diaphragm J pistonE therein. By employment of lever Q, 50 thereon is a lower outer annular flange of a arranged as herein shown and described, it cap K, connected by a pipe L with a reseris impossible for the by-pass valve to stick,

owing to the power exerted by said lever upon the slightest movement of the diaphragm (with which it is connected) by fluid under pressure operating against the spring resistance. It also follows that when the fluidpressure on the diaphragm is less than the spring-pressure the power of the lever insures positive tight seating of the by-pass valve. The area of the piston is considerably greater than that of valve D, so that the steam-pressure acting on said piston will operate to seat said valve and stop the pump until such time as the pressure in said tank falls below the predetermined degree aforesaid. The pressure in tank M being less than the expansive force of spring S, an operation reverse to that set forth in the foregoing takes place automatically and the pump is again setin motion.

The upper cylindrical portion of easing A is provided with a cock U, through which to draw off water of condensation that may accumulate therein.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is-

1. The combination of a casing constituting a pipe-coupling and provided with an apertured partition between its inlet and outlet, a valve controlling the partition-aperture, a piston of greater area than the valve in union with same and movable in a cylindrical portion of the casing, a cover for the cylindrical portion of the aforesaid casing provided with standards, a shell surmou ntin g the standards, a chambered block in the shell constituting part of a by-pass through which communication is established between the inlet portion of the casing and the piston-containing cylindrical portion of same, a pin-valve arranged in said block to control said by-pass, an expansible diaphragm arranged in said shell to be opposed by fluid under pressure, a spring opposed to movement of the diaphragm by fluid under pressure, means for regulating tension of the spring, and a lever connecting the pin-valve with the diaphragm.

2. The combination of a casingoonstituting a pipe-coupling and provided with an apertured partition between its inlet and outlet, a valve controlling the partition-aperture, a piston of greater area than the valve in union with same and movable in a cylindrical portion of the casing having by-pass com munication with the inlet portion of said casing, a valve controlling the by-pass, an expansible di'aph ragm in a shell supported on the aforesaid casing open to a conductor of fluid under pressure, a spiral spring opposed to movement of the diaphragm by fluid under pressure, a screwhavingset-nutadjustmentin opposition to the first of the aforesaid valves, a nut adjustable on the screw against said spring, and a lever connecting said diaphragm with the by-pass valve.

In testimony that I claim the foregoing I have hereunto set my hand, at Milwaukee, in the county of Milwaukee and State of Wisconsin, in the presence of two witnesses.

HERMANN MASCIIMEYER.

Witnesses:

N. E. OLIPHANT, B. C. ROLOFF. 

